itk::SobelEdgeDetectionImageFilter< TInputImage, TOutputImage > Class Template Reference
[Image Feature Extraction Filters]

A 2D or 3D edge detection using the Sobel operator. More...

#include <itkSobelEdgeDetectionImageFilter.h>

Inheritance diagram for itk::SobelEdgeDetectionImageFilter< TInputImage, TOutputImage >:

[legend]Collaboration diagram for itk::SobelEdgeDetectionImageFilter< TInputImage, TOutputImage >:

[legend]List of all members.

Public Types
typedef SobelEdgeDetectionImageFilter	Self
typedef ImageToImageFilter< TInputImage, TOutputImage >	Superclass
typedef TOutputImage::PixelType	OutputPixelType
typedef TOutputImage::InternalPixelType	OutputInternalPixelType
typedef TInputImage::PixelType	InputPixelType
typedef TInputImage::InternalPixelType	InputInternalPixelType
typedef TInputImage	InputImageType
typedef TOutputImage	OutputImageType
typedef InputImageType::Pointer	InputImagePointer
typedef SmartPointer< Self >	Pointer
typedef SmartPointer< const Self >	ConstPointer
Public Member Functions
	itkStaticConstMacro (ImageDimension, unsigned int, TOutputImage::ImageDimension)
virtual const char *	GetClassName () const
virtual void	GenerateInputRequestedRegion () throw (InvalidRequestedRegionError)
Static Public Member Functions
Pointer	New ()
Protected Member Functions
	SobelEdgeDetectionImageFilter ()
virtual	~SobelEdgeDetectionImageFilter ()
	SobelEdgeDetectionImageFilter (const Self &)
void	GenerateData ()
void	PrintSelf (std::ostream &os, Indent indent) const

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Detailed Description

template<class TInputImage, class TOutputImage>
class itk::SobelEdgeDetectionImageFilter< TInputImage, TOutputImage >

A 2D or 3D edge detection using the Sobel operator.

This filter uses the Sobel operator to calculate the image gradient and then finds the magnitude of this gradient vector. The Sobel gradient magnitude (square-root sum of squares) is an indication of edge strength.

See also:

ImageToImageFilter

SobelOperator

Neighborhood

NeighborhoodOperator

NeighborhoodIterator

Definition at line 44 of file itkSobelEdgeDetectionImageFilter.h.

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Member Typedef Documentation

template<class TInputImage, class TOutputImage> typedef SmartPointer<const Self> itk::SobelEdgeDetectionImageFilter< TInputImage, TOutputImage >::ConstPointer

Reimplemented from itk::ImageToImageFilter< TInputImage, TOutputImage >. Definition at line 76 of file itkSobelEdgeDetectionImageFilter.h.

template<class TInputImage, class TOutputImage> typedef InputImageType::Pointer itk::SobelEdgeDetectionImageFilter< TInputImage, TOutputImage >::InputImagePointer

Reimplemented from itk::ImageToImageFilter< TInputImage, TOutputImage >. Definition at line 70 of file itkSobelEdgeDetectionImageFilter.h.

template<class TInputImage, class TOutputImage> typedef TInputImage itk::SobelEdgeDetectionImageFilter< TInputImage, TOutputImage >::InputImageType

Image typedef support Reimplemented from itk::ImageToImageFilter< TInputImage, TOutputImage >. Definition at line 68 of file itkSobelEdgeDetectionImageFilter.h.

template<class TInputImage, class TOutputImage> typedef TInputImage::InternalPixelType itk::SobelEdgeDetectionImageFilter< TInputImage, TOutputImage >::InputInternalPixelType

Definition at line 61 of file itkSobelEdgeDetectionImageFilter.h.

template<class TInputImage, class TOutputImage> typedef TInputImage::PixelType itk::SobelEdgeDetectionImageFilter< TInputImage, TOutputImage >::InputPixelType

Definition at line 60 of file itkSobelEdgeDetectionImageFilter.h.

template<class TInputImage, class TOutputImage> typedef TOutputImage itk::SobelEdgeDetectionImageFilter< TInputImage, TOutputImage >::OutputImageType

Some convenient typedefs. Reimplemented from itk::ImageSource< TOutputImage >. Definition at line 69 of file itkSobelEdgeDetectionImageFilter.h.

template<class TInputImage, class TOutputImage> typedef TOutputImage::InternalPixelType itk::SobelEdgeDetectionImageFilter< TInputImage, TOutputImage >::OutputInternalPixelType

Definition at line 59 of file itkSobelEdgeDetectionImageFilter.h.

template<class TInputImage, class TOutputImage> typedef TOutputImage::PixelType itk::SobelEdgeDetectionImageFilter< TInputImage, TOutputImage >::OutputPixelType

Extract some information from the image types. Dimensionality of the two images is assumed to be the same. Definition at line 58 of file itkSobelEdgeDetectionImageFilter.h.

template<class TInputImage, class TOutputImage> typedef SmartPointer<Self> itk::SobelEdgeDetectionImageFilter< TInputImage, TOutputImage >::Pointer

Smart pointer typedef support Reimplemented from itk::ImageToImageFilter< TInputImage, TOutputImage >. Definition at line 75 of file itkSobelEdgeDetectionImageFilter.h.

template<class TInputImage, class TOutputImage> typedef SobelEdgeDetectionImageFilter itk::SobelEdgeDetectionImageFilter< TInputImage, TOutputImage >::Self

Standard "Self" & Superclass typedef. Reimplemented from itk::ImageToImageFilter< TInputImage, TOutputImage >. Definition at line 51 of file itkSobelEdgeDetectionImageFilter.h. Referenced by itk::SobelEdgeDetectionImageFilter< TInputImage, TOutputImage >::SobelEdgeDetectionImageFilter().

template<class TInputImage, class TOutputImage> typedef ImageToImageFilter< TInputImage, TOutputImage > itk::SobelEdgeDetectionImageFilter< TInputImage, TOutputImage >::Superclass

Reimplemented from itk::ImageToImageFilter< TInputImage, TOutputImage >. Definition at line 52 of file itkSobelEdgeDetectionImageFilter.h.

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Constructor & Destructor Documentation

template<class TInputImage, class TOutputImage> itk::SobelEdgeDetectionImageFilter< TInputImage, TOutputImage >::SobelEdgeDetectionImageFilter (   )  [inline, protected]

Definition at line 100 of file itkSobelEdgeDetectionImageFilter.h.

template<class TInputImage, class TOutputImage> virtual itk::SobelEdgeDetectionImageFilter< TInputImage, TOutputImage >::~SobelEdgeDetectionImageFilter (   )  [inline, protected, virtual]

Definition at line 101 of file itkSobelEdgeDetectionImageFilter.h.

template<class TInputImage, class TOutputImage> itk::SobelEdgeDetectionImageFilter< TInputImage, TOutputImage >::SobelEdgeDetectionImageFilter (  const Self &   )  [inline, protected]

Definition at line 102 of file itkSobelEdgeDetectionImageFilter.h. References itk::SobelEdgeDetectionImageFilter< TInputImage, TOutputImage >::Self.

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Member Function Documentation

template<class TInputImage, class TOutputImage> void itk::SobelEdgeDetectionImageFilter< TInputImage, TOutputImage >::GenerateData (   )  [protected, virtual]

Standard pipeline method. While this class does not implement a ThreadedGenerateData(), its GenerateData() delegates all calculations to an NeighborhoodOperatorImageFilter. Since the NeighborhoodOperatorImageFilter is multithreaded, this filter is multithreaded by default. Reimplemented from itk::ImageSource< TOutputImage >.

template<class TInputImage, class TOutputImage> virtual void itk::SobelEdgeDetectionImageFilter< TInputImage, TOutputImage >::GenerateInputRequestedRegion (   )  throw (InvalidRequestedRegionError) [virtual]

SobelEdgeDetectionImageFilter needs a larger input requested region than the output requested region (larger in the direction of the derivative). As such, SobelEdgeDetectionImageFilter needs to provide an implementation for GenerateInputRequestedRegion() in order to inform the pipeline execution model. See also: ImageToImageFilter::GenerateInputRequestedRegion() Reimplemented from itk::ImageToImageFilter< TInputImage, TOutputImage >.

template<class TInputImage, class TOutputImage> virtual const char* itk::SobelEdgeDetectionImageFilter< TInputImage, TOutputImage >::GetClassName (   )  const [virtual]

Run-time type information (and related methods) Reimplemented from itk::ImageToImageFilter< TInputImage, TOutputImage >.

template<class TInputImage, class TOutputImage> itk::SobelEdgeDetectionImageFilter< TInputImage, TOutputImage >::itkStaticConstMacro (  ImageDimension  , unsigned  int, TOutputImage::ImageDimension  )

template<class TInputImage, class TOutputImage> Pointer itk::SobelEdgeDetectionImageFilter< TInputImage, TOutputImage >::New (   )  [static]

Method for creation through the object factory. Reimplemented from itk::Object.

template<class TInputImage, class TOutputImage> void itk::SobelEdgeDetectionImageFilter< TInputImage, TOutputImage >::PrintSelf (  std::ostream &  os, Indent  indent )  const [inline, protected, virtual]

Standard pipeline method. While this class does not implement a ThreadedGenerateData(), its GenerateData() delegates all calculations to an NeighborhoodOperatorImageFilter. Since the NeighborhoodOperatorImageFilter is multithreaded, this filter is multithreaded by default. Reimplemented from itk::ImageToImageFilter< TInputImage, TOutputImage >. Definition at line 113 of file itkSobelEdgeDetectionImageFilter.h. References HardConnectedComponentImageFilter::PrintSelf().

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The documentation for this class was generated from the following file:

• itkSobelEdgeDetectionImageFilter.h

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